Development of a Class Evaluation/Communication Support System for Asynchronous Distance Lectures

网络讲座有两种形式：实时同步形式和采用视频点播等方式的异步形式。在实时互动讲座中，师生之间的交流得到了保证，但是远程讲座的两个优势，即时间自由度和空间自由度，在时间自由度上受到了限制。相比之下，异步格式具有较高的时间和空间自由度，但会产生缺乏学生与教师或学生与学生交流的问题。因此，这项研究的目的是开发一种支持通信的系统，同时保持时间和空间自由的双重优势。在三年的时间里，开发了一个具有以下功能的系统。(1)实现虚拟小组学习的功能，不同时学习的学生可以在学习e-Learning System教材的过程中分享问题和答案。(2)一个公告板系统，自动搜索过去类似的问题和答案，以便在电子学习环境中出现疑问时提供所需的快速响应。(3)鼓励信息分享的博客功能（简单的Trackback，类似的笔记）(4)在电子学习系统上表达学习期间的情绪/感受的功能。(5)具有视频搜索功能和部分音频支持功能，可搜索特定的讲座场景。(6)一个允许学生看到其他学生进步的功能和一个（学生）同伴评价功能。(7)内部培训系统中实现老技术人员对年轻技术人员技能客观评价的技能地图和基于地图的客观测试功能。中长期试验表明，该系统是有效的。根据研究的一项主要发现，即“在异步系统中建立互动性的方法”，将确定进一步所需的功能并将其安装到系统中。

There are two formats of Internet-based lectures: real-time synchronous formats and asynchronous formats using VOD etc. In real-time interactive lectures, student-teacher communication is guaranteed, but of the two advantages of distance lectures, namely temporal and spatial degrees of freedom, temporal freedom is restricted. In contrast, asynchronous formats have high temporal and spatial degrees of freedom, but incur the problem of a lack of student-teacher or student-student communication. The aim of this research, therefore, was to develop a system that would support communication while maintaining the dual advantages of temporal and spatial freedom. Over a three-year period, a system with the following functions was developed.(1) A function that achieves virtual group learning where students not studying at the same time are able to share questions and answers as they work their way through the e-Learning System teaching materials.(2) A bulletin board system that automatically searches for similar past questions and answers in order to provide speedy response required when doubts arise in an e-Learning setting.(3) A blog function that encourages information-sharing (simple Trackback, similar note posting)(4) A function for expressing emotions/feelings during study time on the e-Learning System.(5) A video search function and partial audio support function to search for specific lecture scenes.(6) A function that allows students to see the progress of other students and a (student) peer-evaluation function.(7) A skill map to enable objective evaluation of young technicians' skills by veteran technicians in an in-house training system and a map-based objective test function.Medium- to long-term testing of the system showed it to be effective. Based on a major finding of the research, namely "a methodology for establishing interactivity even in an asynchronous system", further required functions will be identified and installed into the system.